Vehicle-external sound reproducing device and vehicle device

Abstract

A vehicle-external sound reproducing device reproducing a vehicle-external sound having a further added value while satisfying requirements of agreement regulations for an AVAS is provided. The vehicle-external sound reproducing device includes a sound reproducing part that is disposed inside a main body component of a vehicle and emits a sound to an outside of the vehicle. The sound reproducing part described above includes an exciter, and the exciter is installed on an inner wall of the main body component of the vehicle. The exciter described above is installed at a part at which a vehicle-external sound with a sound pressure level satisfying a predetermined requirement at a position with a predetermined distance and a predetermined height with respect to a traveling center line of the vehicle on the inner side of the main body component of the vehicle is able to be output.

What is claimed is: 
     
         1 . A vehicle-external sound reproducing device comprising a sound reproducing part that is disposed inside a main body component of a vehicle and emits sound to outside of the vehicle. 
     
     
         2 . The vehicle-external sound reproducing device according to  claim 1 , wherein the sound reproducing part includes an exciter, and the exciter is installed on an inner wall of the main body component of the vehicle. 
     
     
         3 . The vehicle-external sound reproducing device according to  claim 2 , wherein the exciter is installed at a part at which a vehicle-external sound with a sound pressure level satisfying a predetermined requirement at a position with a predetermined distance and a predetermined height with respect to a traveling center line of the vehicle on the inner side of the main body component of the vehicle is able to be output. 
     
     
         4 . The vehicle-external sound reproducing device according to  claim 2 , wherein the exciter is installed at least at one part of an inner wall of a front bumper, an air intake duct, and an undercover. 
     
     
         5 . The vehicle-external sound reproducing device according to  claim 2 , wherein the exciter is installed via a stand formed as a flat structure near an installation position of the inner wall of the main body component of the vehicle. 
     
     
         6 . The vehicle-external sound reproducing device according to  claim 1 , wherein the sound reproducing part includes a speaker and a reflection plate that is installed in front of the speaker and reflects a radiated sound of the speaker. 
     
     
         7 . The vehicle-external sound reproducing device according to  claim 6 , wherein the sound reproducing part is disposed in a dead space in front of a radiator inside a front bumper. 
     
     
         8 . The vehicle-external sound reproducing device according to  claim 6 , wherein the reflection plate reflects emitted sound of the speaker such that it converges to be able to pass through a narrow passage provided in the main body component of the vehicle and diffuses after passing through the narrow passage and being discharged to outside of the vehicle. 
     
     
         9 . The vehicle-external sound reproducing device according to  claim 6 , wherein the speaker includes a high-frequency speaker and a low-frequency speaker that are coaxially disposed. 
     
     
         10 . The vehicle-external sound reproducing device according to  claim 9 , wherein the reflection plate includes a high-frequency sound reflective surface reflecting a radiated sound from the high-frequency speaker and a low-frequency sound reflective surface reflecting a radiated sound from the low-frequency speaker. 
     
     
         11 . The vehicle-external sound reproducing device according to  claim 10 , wherein the high-frequency sound reflective surface has a concave face-shaped reflection part reflecting sound waves arriving from the high-frequency speaker to generate parallel waves and a convex face-shaped reflection part reflecting the parallel wave to a narrow passage side connected to the outside of the vehicle and generating a diffusion wave diffusing after being discharged to the outside of the vehicle through the narrow passage. 
     
     
         12 . The vehicle-external sound reproducing device according to  claim 11 , wherein the high-frequency sound reflective surface further has a concave face-shaped reflection part that directly reflects a sound wave delivered from the high-frequency speaker to the narrow passage side and generates a diffusion wave diffusing after being discharged to the outside of the vehicle through the narrow passage. 
     
     
         13 . The vehicle-external sound reproducing device according to  claim 10 , wherein the low-frequency sound reflective surface has a concave face-shaped reflection part that directly reflects a sound wave delivered from the low-frequency speaker to the narrow passage side and generates a diffusion wave diffusing after being discharged to the outside of the vehicle through the narrow passage. 
     
     
         14 . The vehicle-external sound reproducing device according to  claim 11 , wherein the concave face shape is formed from a parabola curved face for which an appropriate aperture ratio is applied. 
     
     
         15 . The vehicle-external sound reproducing device according to  claim 10 , wherein the low-frequency sound reflective surface is disposed on an outer side of the high-frequency sound reflective surface. 
     
     
         16 . The vehicle-external sound reproducing device according to  claim 6 , wherein at least one of a casing of the speaker and the reflection plate is composed of glass-filled polycarbonate or another engineering plastic. 
     
     
         17 . The vehicle-external sound reproducing device according to  claim 6 , wherein the reflection plate is configured such that a resonance frequency is 200 Hz or higher in all frequency modes. 
     
     
         18 . The vehicle-external sound reproducing device according to  claim 1 , further comprising a control part controlling a sound reproduction operation performed using the sound reproducing part. 
     
     
         19 . The vehicle-external sound reproducing device according to  claim 18 , wherein the control part controls the sound reproduction operation performed using the sound reproducing part in accordance with an event occurring in the vehicle. 
     
     
         20 . A vehicle device comprising:
 a main body component; and   a sound reproducing part that is disposed on an inner side of the main body component and radiates a sound to an outside of a vehicle.